Thanks Gordon, here is what we recommend.

1. Reset all of your passwords to unique long passwords, a password manager is preferred to help remember them.
2. While in these accounts labeled with weird things like wang fu, go reset your name and info.
3. Back up and reset your iPhone to get rid of any trace if it was infected. Make sure it is updated to the latest version.

This should lock them out, if they continue to send emails, you can safely ignore them. You can also report them to the FBI Cyber Crime